1. Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
2. Shanghai Key Laboratory for Pharmaceutical Metabolite Research, 325 Guohe Road, Shanghai 200433, China
3. Shanghai Research Centre for Drug (Chinese Materia Medica) Metabolism, 325 Guohe Road, Shanghai 200433, China
4. Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang, Jiangxi 330013, China
5. Department of Anesthesiology & Pain Medicine, University of Washington, Seattle, WA 98195, USA
6. Department of Pharmacology, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China